From: mflynn@scu.edu
To: help-gnu-emacs@gnu.org
Subject: Re: ELisp Interactive Calls
Date: Fri, 19 Dec 2014 13:22:11 -0800 (PST) [thread overview]
Message-ID: <edb765bc-070a-4bda-9240-c5add0c7b542@googlegroups.com> (raw)
In-Reply-To: <f222a1d9-a29b-41f3-8d44-c0564e1bacb3@googlegroups.com>
On Friday, December 19, 2014 12:13:36 PM UTC-8, mfl...@scu.edu wrote:
> After all these years I'm trying to teach myself how to write Emacs Lisp programs.
>
> To call this function:
>
> (defun my-test-function (arg1)
> "DOC: Multiply two numbers."
> (interactive "p")
> (message "The square of the arg is: %d" (* arg1 arg1))
> )
>
>
> I type:
> Ctrl-U 8 Esc-x my-test-function
>
> and 64 is printed, as I would expect.
>
> But I'm not sure how to supply two args interactively.
>
> (defun my-test-function (arg1 arg2)
> "DOC: Multiply two numbers."
> (interactive "p p")
> (message "The product of the args is: %d" (* arg1 arg2))
> )
>
> How do I call this? If I type Ctrl-U 8 8 Esc-x my-test-function
>
> the call fails with a Wrong number of args message. The second 8 I type just shows up in the scratch buffer.
>
> Thanks
This is great. Thank you.
prev parent reply other threads:[~2014-12-19 21:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-19 20:13 ELisp Interactive Calls mflynn
2014-12-19 20:38 ` Yuri Khan
2014-12-19 21:22 ` mflynn [this message]
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